Pathway from condensation via fragmentation to fermionization of cold bosonic systems

被引：75

作者：

Alon, OE ^{[1
]}

Cederbaum, LS ^{[1
]}

机构：

[1] Heidelberg Univ, Inst Chem Phys, D-69120 Heidelberg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.95.140402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

For small scattering lengths, cold bosonic atoms form a condensate the density profile of which is smooth. With increasing scattering length, the density gradually acquires more and more oscillations. Finally, the number of oscillations equals the number of bosons and the system becomes fermionized. On this pathway from condensation to fermionization intriguing phenomena occur, depending on the shape of the trap. These include macroscopic fragmentation and coexistence of condensed and fermionized parts that are separated in space.

引用

页数：4

共 27 条

[1] Direct observation of tunneling and nonlinear self-trapping in a single bosonic Josephson junction -: art. no. 010402 [J].

Albiez, M ;

Gati, R ;

Fölling, J ;

Hunsmann, S ;

Cristiani, M ;

Oberthaler, MK .

PHYSICAL REVIEW LETTERS, 2005, 95 (01)

[2] Zoo of quantum phases and excitations of cold bosonic atoms in optical lattices [J].

Alon, OE ;

Streltsov, AI ;

Cederbaum, LS .

PHYSICAL REVIEW LETTERS, 2005, 95 (03)

[3] Quasi-one-dimensional Bose gases with a large scattering length [J].

Astrakharchik, GE ;

Blume, D ;

Giorgini, S ;

Granger, BE .

PHYSICAL REVIEW LETTERS, 2004, 92 (03) :4

[4] Fermionization of a bosonic gas under highly elongated confinement: A diffusion quantum Monte Carlo study [J].

Blume, D .

PHYSICAL REVIEW A, 2002, 66 (05) :8

[5] A density-functional approach to fermionization in the 1D Bose gas [J].

Brand, J .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2004, 37 (07) :S287-S300

[6] Best mean-field for condensates [J].

Cederbaum, LS ;

Streltsov, AI .

PHYSICS LETTERS A, 2003, 318 (06) :564-569

[7] Bose-Einstein condensation of two interacting particles [J].

Cirone, MA ;

Góral, K ;

Rzazewski, K ;

Wilkens, M .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2001, 34 (23) :4571-4587

[8]

Cornell EA, 2002, REV MOD PHYS, V74, P875, DOI [10.1103/RevModPhys.74.875, 10.1142/S0217979202014681]

[9] Stable 85Rb Bose-Einstein condensates with widely tunable interactions [J].

Cornish, SL ;

Claussen, NR ;

Roberts, JL ;

Cornell, EA ;

Wieman, CE .

PHYSICAL REVIEW LETTERS, 2000, 85 (09) :1795-1798

[10] Bosons in cigar-shaped traps: Thomas-Fermi Tonks-Girardean regime, and in between [J].

Dunjko, V ;

Lorent, V ;

Olshanii, M .

PHYSICAL REVIEW LETTERS, 2001, 86 (24) :5413-5416

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